612500001 has 8 divisors (see below), whose sum is σ = 825086304. Its totient is φ = 404123520.

The previous prime is 612499999. The next prime is 612500033. The reversal of 612500001 is 100005216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 612500001 - 2¹ = 612499999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (612500401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052115 + ... + 1052696.

It is an arithmetic number, because the mean of its divisors is an integer number (103135788).

Almost surely, 2^612500001 is an apocalyptic number.

It is an amenable number.

612500001 is a deficient number, since it is larger than the sum of its proper divisors (212586303).

612500001 is a wasteful number, since it uses less digits than its factorization.

612500001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104911.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 612500001 is about 24748.7373617322. The cubic root of 612500001 is about 849.2496265831.

Adding to 612500001 its reverse (100005216), we get a palindrome (712505217).

The spelling of 612500001 in words is "six hundred twelve million, five hundred thousand, one".